This Cast Backing Assembly (Spider)is designed for Dexter 7,200 lb and 8,000 lb capacity electric brakes.
- Fits 12-1/4" x 3-3/8" 8k Dexter Brakes Part Number: 23-434 or 23-435
- Fits 12-1/4" x 2-1/2" 7.2k Dexter Brakes Part Number: 23-428 or 23-429
- Use with Right or Left Hand Electric Brakes
- Has 4 bolt pattern for attaching to the axle brake flange